But the secondary objective would be to protect the 4 pillars that guard you form her 2hr.

Certain classes, like Magic Classes, were ineffectual against the Plumes which damaged the pillars, so classes like Bard (partially) and Dragoon (primarily) became niche in even though BLM dealt steady safe damage.

This was great in concept, but certain executions fell a touch short of what was needed, and some exploits were still there or had to be patched away.

But they're keeping enemy and encounter balancing in mind when they design these, at least.